Screw-holding attachment for screwdrivers



T M. COLL. SCREW HOLDING ATTACHMENT FOR SCREWDRIVERS. APPLICATION FILEDJUNE 16, 1919.

1,360,500, Patented Nm 30, 1920.

lvitmeao MICHAEL COLL, OF NEW YORK, N. Y.

SCREW-H O LDING ATTACHMENT FOR SCREWDRIVEBS.

Specification of Letters I'atent. Patented N 30 1920 Application filedJune 1a, 1919. Serial No. 304,402.

To all who'mt't may concern:

Be it known that I, MwHAEnGoLL, a citizen of the United States, residingat New York, in the county of New York and State of New York, haveinvented certain new and useful Improvements in Screw-Holding Attachments for Screwdrivers; and I do declare the following to be a full,clear, and exactdescription of the invention, such as will enable othersskilled in the art to which it appertains, to make and use the same.

My invention relates .to improvements in screw-holding attachments forscrew-drivers.

The main object of the invention is to construct a simple and effectiveattachment of the abovementioned type which will enable the operator toreadily insert screws in places difficult of access, such as cabinets,

clock-cases, electric fixtures, machinery, etc. Another object of theinvention is to provide a screw-holding attachment of novel form whichmay be readily adapted for use" in connection with a screw-driver havingeither a cylindrical or square shank.

A further object of the invention is to construct a device of the abovementioned character which is strong, durable, practical andinexpensive'to manufacture.

A further object of the invention is to construct the attachment ofelastic material, such as rubber, which will readily adapt itself todifferent size screws and screw-driver shanks.

Other objects and advantages of the invention will be apparent from thefollowing description:

In the acompanying drawing forming a I part of this specification and inwhich like numerals are employed to designate like parts,

' Figure 1 is a side elevation of a screwdriver wit h.my inventionapplied thereto.

Fig. 2 is a similar view, the attachment being shown in section.

Fig. 3 is a detailed longitudinal sectionalviewof my improvement.

Fig. 4; is an end view of the attachment. In the drawings, wherein forthe purpose of illustration is shown a preferred embodiment of myinvention, the numeral 4: designates the shank of a screw-driver havingthe usual tapered point and! handle 5.

The numeral 6 designates, as a whole, my improved screw-holdingattachment which is preferably constructed of a high grade elasticrubber. As shown, the attachment is the screw-head.

As shown in the drawing, the device is preferably constructed withthickened portions 8 at the opposite ends thereof for the purpose ofrein orcing or strengthening the engagement of it with the shank of thescrewdriver and the screw. The narrow central portion, designated by thenumeralv 9., is for the purpose of allowing one end of the rubber holderto flex laterally with respect to the other end, thus enabling the shankof the screw-driver to come into effective engagement with the head ofthe screw and also to permit the screw to be slightly angled withrespect to the shank of the screw-driver. In operation, a screw 10 isforced into the lar e or outer end of the central passage 7 and t erubber will frictionally engage and hold the screw tightly therein. Theupper or inner end of the rubber holder 6 is now forced on the end ofthe screw-driver shank 4 in the manner shown in Fig. 2. It will beobvious that the holder being of a flexible material, will conform tothe shape of the shank, and screw respectively. It will be noted thatthe central portion 9 will give or bulge sufficiently to enable theshank and screw to come into effective engagement with one another.

' It should also be noted that the attachment, due to the elasticity ofthe same, is

adapted to hold either machine or wood screws having different sized andshaped heads, thus being a substantial improvement over attachments ofthis general type heretofore used. I also wish to mention here, that theattachment not only fits different sized and shaped screws, but it alsoadapts itself to screw-drivers having various sized and shaped shanks,and it can be shifted longitudinally-theroon to properly bring thescrew-driver shank and screw into effective engagement. i

t is understood that the form of my inwnlion herewith shown anddescribed isto be taken as the preferred form of thesaxne, and thatvarious changes in the shape, size, and arrangement of parts may beresorted to without departing from the spirit of the invention or thescope of the subjoined ('lail'n.

Having thus described my'invention, what I claim is- A screw holdingattachment for a' screw driver comprising a tube of elastic'materialhavin its central passage tapering from its en s and havihg itsintermediate portion of even diameter between the inner ends of thetapered portions, the tube having its walls reduced intermediate itslength and at its ends to provide substantially spherical end portionswith the tapered portions of the central pasage formed therein.

In testimony whereof I have hereunto set m hand.

Q y MICHAEL COLL.

